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Related papers: Giant Planet Formation by Core Accretion

200 papers

We have now accumulated a wealth of observations of the planet-formation environment and of mature planetary systems. These data allow us to test and refine theories of gas-giant planet formation by placing constraints on the conditions and…

It is reasonable to assume that the structure of a planet and the interior distribution of its components are determined by its formation history. We thus follow the growth of a planet from a small embryo through its subsequent evolution.…

Earth and Planetary Astrophysics · Physics 2022-08-03 Michael Lozovsky , Dina Prialnik , Morris Podolak

We extend the models presented in Mordasini et al. (2009) to the formation of planets orbiting stars of different masses. We discuss the properties of the resulting synthetic planet population in terms of mass, orbit, and metallicity…

Earth and Planetary Astrophysics · Physics 2015-05-20 Yann Alibert , Christoph Mordasini , Willy Benz

The origin of close-in Jovian planets is still elusive. We examine the in-situ gas accretion scenario as a formation mechanism of these planets. We reconstruct natal disk properties from the occurrence rate distribution of close-in giant…

Earth and Planetary Astrophysics · Physics 2019-08-28 Yasuhiro Hasegawa , Tze Yeung Mathew Yu , Bradley M. S. Hansen

We study a solid protoplanetary core of 1-10 earth masses migrating through a disk. We suppose the core luminosity is generated as a result of planetesimal accretion and calculate the structure of the gaseous envelope assuming equilibrium.…

Astrophysics · Physics 2009-10-31 J. Papaloizou , C. Terquem

Prevailing $N$-body planet formation models typically start with lunar-mass embryos and show a general trend of rapid migration of massive planetary cores to the inner Solar System in the absence of a migration trap. This setup cannot…

Earth and Planetary Astrophysics · Physics 2024-03-27 Tommy Chi Ho Lau , Man Hoi Lee , Ramon Brasser , Soko Matsumura

Recent observations of protoplanetary disks have revealed ring-like structures that can be associated to pressure maxima. Pressure maxima are known to be dust collectors and planet migration traps. Most of planet formation works are based…

Earth and Planetary Astrophysics · Physics 2020-10-14 O. M. Guilera , Zs. Sándor , M. P. Ronco , J. Venturini , M. M. Miller Bertolami

This paper reviews the dynamics of the growth of solid particles from micron-sized dust grains to planets in protostellar accretion disks. The formation and orbital evolution of giant protoplanets is also discussed.

Astrophysics · Physics 2007-05-23 Steven P. Ruden

(Abridged) We present numerical simulations of the formation of the planetary companions to 47 UMa, rho CrB, and 51 Peg. They are assumed to have formed in situ according to the basic model that a core formed first by accretion of solid…

Earth and Planetary Astrophysics · Physics 2021-11-18 Peter Bodenheimer , Olenka Hubickyj , Jack J. Lissauer

I examine the standard model of planet formation, including pebble accretion, using numerical simulations. Planetary embryos large enough to become giant planets do not form beyond the ice line within a typical disk lifetime unless icy…

Earth and Planetary Astrophysics · Physics 2016-07-06 J. E. Chambers

Planets are expected to conclude their growth through a series of giant impacts: energetic, global events that significantly alter planetary composition and evolution. Computer models and theory have elucidated the diverse outcomes of giant…

Earth and Planetary Astrophysics · Physics 2023-12-27 Travis S. J. Gabriel , Saverio Cambioni

Planet formation models are necessary to understand the origins of diverse planetary systems. Circumstellar disc substructures have been proposed as preferred locations of planet formation but a complete formation scenario has not been…

Earth and Planetary Astrophysics · Physics 2024-07-31 Tommy Chi Ho Lau , Til Birnstiel , Joanna Drążkowska , Sebastian Markus Stammler

The disk instability (DI) model for giant planet formation remains an attractive alternative in explaining the formation of giant planets at early times, giant planets at large radial distances, and giant planets orbiting M-stars. In this…

Earth and Planetary Astrophysics · Physics 2026-04-13 Ravit Helled , Oliver Schib , Christian Reinhardt , Noah Kubli , Lucio Mayer , Christoph Mordasini , Gabriele Cugno

In the standard model of terrestrial planet formation, planets are formed through giant impacts of planetary embryos after the dispersal of the protoplanetary gas disc. Traditionally, $N$-body simulations have been used to investigate this…

Earth and Planetary Astrophysics · Physics 2025-05-28 Tadahiro Kimura , Haruka Hoshino , Eiichiro Kokubo , Yuji Matsumoto , Masahiro Ikoma

Models of planet formation are built on underlying physical processes. In order to make sense of the origin of the planets we must first understand the origin of their building blocks. This review comes in two parts. The first part presents…

Earth and Planetary Astrophysics · Physics 2022-03-14 Sean N. Raymond , Alessandro Morbidelli

We investigate gas accretion onto a protoplanet, by considering the thermal effect of gas in three-dimensional hydrodynamical simulations, in which the wide region from a protoplanetary gas disk to a Jovian radius planet is resolved using…

Solar and Stellar Astrophysics · Physics 2015-05-18 Masahiro N. Machida , Eiichiro Kokubo , Shu-ichiro Inutsuka , Tomoaki Matsumoto

In models of planetary accretion, pebbles form by dust coagulation and rapidly migrate toward the central star. Planetesimals may continuously form from pebbles over the age of the protoplanetary disk by yet uncertain mechanisms. Meanwhile,…

Earth and Planetary Astrophysics · Physics 2018-04-17 Ryuji Morishima

Models of planetary core growth by either planetesimal or pebble accretion are traditionally disconnected from the models of dust evolution and formation of the first gravitationally-bound planetesimals. The state-of-the-art models…

Earth and Planetary Astrophysics · Physics 2022-12-28 Tommy Chi Ho Lau , Joanna Drążkowska , Sebastian M. Stammler , Tilman Birnstiel , Cornelis P. Dullemond

The Kepler transit survey with follow-up spectroscopic observations has discovered numerous super-Earth sized planets and revealed intriguing features of their sizes, orbital periods, and their relations between adjacent planets. For the…

Earth and Planetary Astrophysics · Physics 2021-12-22 Yuji Matsumoto , Eiichiro Kokubo , Pin-Gao Gu , Kenji Kurosaki

Recently, gas giant planets in nearly circular orbits with large semimajor axes ($a \sim$ 30--1000AU) have been detected by direct imaging. We have investigated orbital evolution in a formation scenario for such planets, based on core…

Earth and Planetary Astrophysics · Physics 2015-06-23 A. Kikuchi , A. Higuchi , S. Ida